Tanja Bosak

Associate Professor of Geobiology

Contact: tbosak[at]
Bosak CV


Giulio Mariotti

Postdoctoral Research Associate in Geobiology

Contact: giuliom[at]

My overarching research question concerns the evolution of the earth surface. My current research plan has two main overlapping components: the study of coastal morphology, and the coupling between morphology/geology and biology/ecology (i.e., ecogeomorphology and geobiology). In order to pursue this goal I use both analytic & numerical models and laboratory experiments.


Emily Matys

MIT Graduate Student in Geobiology

Through organic geochemical and micropaleontological analysis, I study the information that is preserved in sedimentary archives. As part of the Bosak laboratory, I continue to characterize body fossils from the Neoproterozoic interglacial period to better understand early eukaryotic radiation and possible connections with the dramatic environmental change associated with the Sturtian low-latitude glaciation.

Kristen Miller

Postdoctoral Research Associate in Geobiology

Contact: miller_k[at]


Sharon Newman

MIT Graduate Student in Geobiology

Contact: sharon.newman[at]

My current research focuses on the analysis of microfossils from the post-Sturtian glaciation, pre-Marinoan glaciation interval (~715-635 Ma). I am interested in combining micropaleontological and organic geochemical studies to shed light on eukaryotic life during the Neoproterozoic.


Ana De Santiago Torio

Research Associate

Contact: anast[at]

I am passionate about microbiology. I’m currently interested in understanding how sulfate-reducing bacteria respond to variable environmental conditions, such as nutrient limitation, and how those changes affect their metabolism. Ultimately, this might give us an insight into how sediments are influenced by the microbes living in them.



David Wang

MIT/WHOI Graduate Student


My current work focuses on characterizing the physiological controls on the upper limit of sulfur isotope fractionation during microbially-mediated reduction of sulfate. I am broadly interested in understanding the influence of organic matter composition on sedimentary processes, in the context of Earth surface history and geochemistry.

Shikma Zaarur

Postdoctoral Research Associate
Contact: shikma[at]

Undergraduate Research Students

None currently. Please contact regarding opportunities.


Friends of the Lab


Gilad Antler

PhD Candidate at University of Cambridge.

Sara Pruss

Assistant Professor, Smith College.  

Lilliam Casillas

Principal Investigator, Biology Department, University of Puerto Rico- Humacao. webiste

Gill Geesey

Professor, Department of Microbiology, Montana State University

Elizabeth Johnson (North Carolina State U.)

Graduate Student, Department of Marine Earth and Atmospheric Sciences,North Carolina State University

Laura Meredith

PhD in Atmospheric Sciences at MIT

Eileen Malloy-Molzberger

Graduate Student, Department of Biochemistry, Duke University



Former Members

Dr. Alexander J. Evans

now a postdoctoral fellow at Columbia University – Lamont-Doherty Earth Observatory.

Dr. Alexander Petroff

now a postdoctoral fellow at Rockefeller University.

Dr. Stefanie Templer

currently in Emmi, Switzerland.

Dr. Biqing Liang

now at Academia Sinica in Taiwan.

Dr. Min Sub Sim

now at Agouron Postdoctoral Fellow at Northwestern University.

Kate Harris

pursuing a project to cycle the silk road:

Former undergraduate students: Joan Chen, Rachel Harris, Diana LaScala-Gruenewald, Anastasia Maheras, Deepa, Rao, Kristen Whaley, Jose-Luis Lugo (U Puerto Rico), Kevin Gildea


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